我需要帮助将 c# 匿名方法转换为 vb.net [英] I need help converting a c# anonymous method to vb.net

问题描述

provider.OptionsSet += delegate
{
  provider.FinishedLoading();
};

推荐答案

很好的演示了转换器如何严重错误，他们已经有很长时间了.+= 运算符不是 VB.NET 语法，订阅事件需要 AddHandler.Do 来自哪里是任何人的猜测.lambda 不能是函数，除了委托类型返回值的极少数情况.一行三个错误，你没有机会.您需要 VS2010 来编写 Sub lambda.像这样:

Nice demonstration how converters get this dramatically wrong, they have for a long time. The += operator isn't VB.NET syntax, AddHandler is required to subscribe events. Where the Do comes from is anybody's guess. The lambda can't be a Function, except for the very rare cases where the delegate type returns a value. Three bugs in one line, you don't stand a chance. You need VS2010 to write a Sub lambda. Like this:

Module Module1
    Sub Main()
        Dim obj As New Test
        AddHandler obj.example, Sub(sender As Object, e As EventArgs)
                                    '' etc...
                                End Sub
    End Sub
End Module

Class Test
    Public Event example As EventHandler
End Class

对于早期版本，您需要一些非匿名的辅助方法.像这样:

For earlier versions, you'll need a little non-anonymous helper method. Like this:

    AddHandler obj.example, AddressOf helper
...
Sub helper(ByVal sender As Object, ByVal e As EventArgs)
    '' etc..
End Sub

人 1，机器 0.

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